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theme: Add method to adjust styles for frame state

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GTK+ expresses the window state as style classes and widget state for
client-side decorations. Add a helper method to translate our own frame
state to the corresponding changes to the style context hierarchy.

https://bugzilla.gnome.org/show_bug.cgi?id=741917
This commit is contained in:
Florian Müllner 2014-09-25 06:41:40 +02:00 committed by Jasper St. Pierre
parent 89a371ec98
commit bc9547f29e
2 changed files with 75 additions and 0 deletions
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3
src/ui/theme-private.h
View File

@ -1049,6 +1049,9 @@ MetaStyleInfo * meta_theme_create_style_info (GdkScreen *screen,
MetaStyleInfo * meta_style_info_ref (MetaStyleInfo *style);
void meta_style_info_unref (MetaStyleInfo *style_info);
void meta_style_info_set_flags (MetaStyleInfo *style_info,
MetaFrameFlags flags);
PangoFontDescription * meta_style_info_create_font_desc (MetaStyleInfo *style_info);
void meta_theme_draw_frame (MetaTheme *theme,

72
src/ui/theme.c
View File

@ -5111,6 +5111,78 @@ meta_style_info_unref (MetaStyleInfo *style_info)
}
}
static void
add_toplevel_class (GtkStyleContext *style,
const char *class_name)
{
if (gtk_style_context_get_parent (style))
{
GtkWidgetPath *path;
path = gtk_widget_path_copy (gtk_style_context_get_path (style));
gtk_widget_path_iter_add_class (path, 0, class_name);
gtk_style_context_set_path (style, path);
gtk_widget_path_unref (path);
}
else
gtk_style_context_add_class (style, class_name);
}
static void
remove_toplevel_class (GtkStyleContext *style,
const char *class_name)
{
if (gtk_style_context_get_parent (style))
{
GtkWidgetPath *path;
path = gtk_widget_path_copy (gtk_style_context_get_path (style));
gtk_widget_path_iter_remove_class (path, 0, class_name);
gtk_style_context_set_path (style, path);
gtk_widget_path_unref (path);
}
else
gtk_style_context_remove_class (style, class_name);
}
void
meta_style_info_set_flags (MetaStyleInfo *style_info,
MetaFrameFlags flags)
{
GtkStyleContext *style;
const char *class_name = NULL;
gboolean backdrop;
GtkStateFlags state;
int i;
backdrop = !(flags & META_FRAME_HAS_FOCUS);
if (flags & META_FRAME_IS_FLASHING)
backdrop = !backdrop;
if (flags & META_FRAME_MAXIMIZED)
class_name = "maximized";
else if (flags & META_FRAME_TILED_LEFT ||
flags & META_FRAME_TILED_RIGHT)
class_name = "tiled";
for (i = 0; i < META_STYLE_ELEMENT_LAST; i++)
{
style = style_info->styles[i];
state = gtk_style_context_get_state (style);
if (backdrop)
gtk_style_context_set_state (style, state | GTK_STATE_FLAG_BACKDROP);
else
gtk_style_context_set_state (style, state & ~GTK_STATE_FLAG_BACKDROP);
remove_toplevel_class (style, "maximized");
remove_toplevel_class (style, "tiled");
if (class_name)
add_toplevel_class (style, class_name);
}
}
PangoFontDescription*
meta_style_info_create_font_desc (MetaStyleInfo *style_info)
{